Function composeEventHandlers

packages/editor/src/utils/event.ts:1–13

(
  originalEventHandler?: (event: E) => void,
  ourEventHandler?: (event: E) => void,
  { checkForDefaultPrevented = true } = {},
)

export const composeEventHandlers = <E>(
  originalEventHandler?: (event: E) => void,
  ourEventHandler?: (event: E) => void,
  { checkForDefaultPrevented = true } = {},
) => {
  return function handleEvent(event: E) {
    originalEventHandler?.(event)

    if (checkForDefaultPrevented === false || !(event as unknown as Event).defaultPrevented) {
      return ourEventHandler?.(event)
    }
  }
}

export const isTouchEvent = (event: any): event is TouchEvent => {
  return typeof window.TouchEvent !== 'undefined' && event instanceof TouchEvent